Table 3.
Mean (increase of score)
| Groups | Mean | N | Standard deviation |
|---|---|---|---|
| Group A | 11.4 | 17 | 12.7870 |
| Group B | 7.2 | 17 | 7.6027 |
| Group C | 17.4 | 18 | 12.4579 |
| Group D | 9.0 | 18 | 7.1970 |
| Total | 11.3 | 70 | 10.8355 |
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